Info: A-Star 32U4 micro ac01a Item# 3101
IDE 2.3.6 Purchased those boards many years ago.
The board is present on IDE and device manager. It has been selected a few times. I replaced it with eSP32 DEV and compiled successfully. when I plug the board back, it recognized it but compiling produces the result below.
I am thinking that IDE out of steps with the board…
loading library from c:\Users\renal\OneDrive\Documents\Arduino\libraries\RS485-Testing-with-STM32-main: invalid library: no header files found
FQBN: pololu-a-star:avr:a-star32U4
Using board ‘a-star32U4’ from platform in folder: C:\Users\renal\AppData\Local\Arduino15\packages\pololu-a-star\hardware\avr\5.1.0
Using core ‘arduino’ from platform in folder: C:\Users\renal\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6
Detecting libraries used…
C:\Users\renal\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_A_STAR_32U4 -DARDUINO_ARCH_AVR -DUSB_VID=0x1ffb -DUSB_PID=0x2300 -DUSB_MANUFACTURER=“Pololu Corporation” -DUSB_PRODUCT=“Pololu A-Star 32U4” -
…
…skipping a bunch of details…
.
Sketch uses 4346 bytes (15%) of program storage space. Maximum is 28672 bytes.
Global variables use 149 bytes (5%) of dynamic memory, leaving 2411 bytes for local variables. Maximum is 2560 bytes.
Performing 1200-bps touch reset on serial port COM5
Waiting for upload port…
No upload port found, using COM5 as fallback
“C:\Users\renal\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude” “-CC:\Users\renal\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf” -v -V -patmega32u4 -cavr109 “-PCOM5” -b57600 -D “-Uflash:w:C:\Users\renal\AppData\Local\arduino\sketches\9422B9EEEB0A7B5BB04C660CA30EDDDA/sketch_nov13a.ino.hex:i”
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is “C:\Users\renal\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf”
Using Port : COM5
Using Programmer : avr109
Overriding Baud Rate : 57600
avrdude: ser_open(): can’t open device “\.\COM5”: Access is denied.
avrdude done. Thank you.
Failed uploading: uploading error: exit status 1